Who built the cathedrals of Europe? No one knows, and that is the point. They were built anonymously. Their work was an expression of the builders’ religious practice. To have it recognized would have offended the intention of their devotion.
Sacrifice remains essential to religious practice in general and for The Act of Consecration in particular. The word ‘sacrifice’ is often used outside the context of religious practice. We can grasp its religious meaning through comparison with its commonplace usage.